1.5 LITER. 8-SPEED TRANSMISSION. An exhaust Bolt is a specialized fastener designed to secure various components of an exhaust system, including the manifold, catalytic converter, and exhaust pipes. Automatic Transmission Oil Cooler Bolt. Bumper Cover Reinforcement Bolt. Bumper Cover Support Rail Bolt. Automatic Transmission Oil Cooler. Bumper Cover Reinforcement. Bumper Cover Support Rail. Center Support. Exhaust. HexAGON - Head 8x. Tube.